Heating and ventilating apparatus



@ec. 29, 1931. J. (3. MILES 1,838,493

HEATING AND YENTILA'I'ING APPARATUS Filed March 27, 1931 Patented Dec. 29, 1931 o o 1,838,493

a ZZUNITETD is-e AZTZENT ors-1e];

, mums MILES, or? emrvnrann, :omo

. Hmrme-.-a1m :VENTILATINGA'PRABATUS .ll gpplication flledllarch 27 1931: Seria1'N6.525,728.

aThis inventiomrelatesto heating andvenahot =air-heatingfurnace; and in Fig. 4 I ti latingg a pparatus and partic'irla rly to that have shown aheating chamber of a hot -air which is adapted for nse in-eonneeti-on \vith' fu1*nace at-'10, with an air inlet conduit ll hot air heating'systems;-wliich= are intended leading theretoadj acen-tthe lower end there- H 5 to be operated eithenas agravity systemor 90f. Disposed across the inlet opening of the as as a iforc'ed air system. -Apparatus ofmhis conduit, '1 have shown a rectangular frame -characterusuially comprises af-a-n and-:damp- 12, which is providedwith a fanopening lil -er 11nit, -that is mounted adjaeent theinlet and damper opening 1 1. The fan opening 'conduit of a -liotllai r heating furnaceflNor-" is zpr eferably disposed adj-acentthe in'idporlu lnally'j the dampers -arewopen when the fan tion-of the frame, while the damper openings on I is no t in operation so asto provide adequate varepositioned on'eachside oftl1= fan-openfreeare a for the passage of air into the heating. lVhile my inventionmay-beoperated-sating chambeiyi buv means "are provided for isfactorilywithonly one damper opening, antomatie ally 'closing the dampers whenthenevertheless I "prefer to utilize two in order 1 313 -16811 isst'arted. Wheere-the dampers are poslto distributethe air uniformly Wvhile it is H3 tionedoneach sidei of thedany-as is shown 'inf-flowing intothe heating chamber under the 'myiPatentNo. 1,508,813issued September m, gravity-system. i Each*damper'opening is "1924; the blast-from fill iflfil isforced'directly adaptedto be closed by a' damper 15,-=and in 1 into the' heating chamber without any lateral the *preferred arrangement, the dampers are di-fiusion. I havefound=howeverfithat such mounted'upon a-common sliaft .16,'whicli-is 7i 'dateral'diifusion is advaintageousy-inthat it supported by bearings 17 on the vertical facilitates the movement of air "around all membersQO ofthe' frame. parts of' thefurnace ehambergand alsoforces EEach-damper preferably comprises a sheet it more readily througout all of the warm airnietal -piece,which may-"bebent intermediateconduits. ly'toextendaround the shaft and rigidlyse An object of my invention therefore, is towcured, asybywelding-thereto."The dampers provide an apparatus, which operates aut0---"are normally held inopen positionfwhenthe matically and simultaneously with the fan to=*fan is sto-pped, by means'of weights 2-1wvhich diffuse the air and to effect positive closure--are attachedtoan-oVerhanging portionof 1:53) of the dampers when the fan is started. A" the-dampersf Theyare*adaptedto'be closed further object of my invention is to make anz aut'omatically however, whenthe fan is: start apparatus, wherein most of the parts may be ed by pneumatically opera-tedvanes 30, which made of stampings, and whereby the manuare"mountedpn"vertical pivots 31 adjacent facturing cost of the entire unit may be ma t-he discharge opening 32 ofthe blower 33.

terially reduced. "'Each-yane is operatively-connectedto -the"i Referring now to the drawings, Fig. 1 is rshaftas by a linl'r iitand post 35, and the rea front elevation of a furnace fan unit emlationshi-p is-such-that the vanes exte n'dtransbodying my invention; Fig. 2 is a section -ver'sely of "the-"discharge opening when-the taken on the line 22 in Fig. 1; Fig. 3 is an fan is idle and the dampersare opened. "This.

mt) enlarged view of the vane shaft bearing; Fig. -position is' shown in"the full-l'ines'infF'igs. 4"

4 is a horizontal section taken through a hot'-and 5,-and*-by the broken lines 30A in Fig; 6. air furnace having my apparatus mounted 'When the-fan is started however the curadjacent the inlet conduit thereof; Fig. 5 15"51'61113 Zoffairi flowing therefrom impinges a side elevation of the furnace showing part iragainst the vanesand-moves them to the'fi'lll of the inletconduit in section; Fig. 6 is an'*line'apositioninFig. GJ Thesame posit/ionis" enlarged horizontal section through a part of -also' il'lustrated ir'i Figs". 1* and 2. 5 At=such my device and illustrates the connection be =timethedainpers arein theclos'ed: position, tween the damper shaft and the actuating-= wliile the avaneseXtenchobliqnelyetti the"air vane. current; wherefore-some of the air Wil l-bede My invention is shown in. connection 'vvith" -flected later'ally, as isshownbythearrows- 111 Fig. 2, and forced toward the sides of the conduit 11 and the outside walls of the heat- 1ng chamber. Thus, the air is diffused within the chamber, and the necessity for the use of baffles therein is obviated.

I claim:

1. In combination, a heating chamber having an air inlet conduit leading thereto, a fan and a damper disposed adjacent the conduit, the damper being mounted upon a horizontal pivot and adapted to be held normally open when the fan is idle, and a vane mounted upon a vertical pivot and disposed on the discharge side of the fan, whereby air from the fan impinges thereon when the fan is in operation, and means for connecting the vane and the damper for moving the damper simult-aneously with the vane, and said vane extending obliquely to the current of air from the fan, when the damper is closed, whereby some of the air is deflected laterally as it flows into the heating chamber.

2. In combination, with the heating chamber of a hot air furnace, of an air inlet opening therefor, a fan and a damper disposed adacent the inlet, said damper being normally open when the fan is id e, and means disposed in the path of the current of air from the fan for moving the damper to closed position when the fan is started, said means extending obliquely and vertically with refer ence to the current of air whereby some of the air is allowed to flow directly into the chamber while the rest of the air is deflected laterally by said means toward the side of the chamber.

3. In combination with the heating chamber of a hot air furnace, of an air inlet opening therefor, a fan and a damper disposed adjacent the opening, said damper being mounted upon a horizontal pivot and being normally held in open position when the fan is idle, a vane mounted on a vertical pivot within the path of a current of air from the fan, and normally disposed transversely of the path of the air when the damper is open,

a link operatively connecting the vane and damper for closing the damper when the fan is started, said link being so connected to the vane that the vane extends obliquely to the path of air when the damper is closed, whereby the vane operates to deflect some of the air laterally into the heating chamber while the fan is in operation.

4. In combination, with the heating chamber of a hot air furnace, of an air inlet conduit leading thereto, a frame extending across the conduit and having two openings therein, a damper positioned adjacent one of the openings, and a fan positioned adjacent the other opening, a horizontally extending shaft attached to the damper and extending across the discharge opening from the fan, a vane mounted on a vertical pivot on the furnace side of said shaft, said vane being normally disposed transversely of the inlet conduit, and being adapted to be impinged by the air from the fan and moved thereby to an oblique position when the fan is started, and means for operatively connecting the vane to the shaft whereby the vane moves the damper in one direction when the fanv is started, and means on the damper for moving it and the vane in the opposite direction when the fan is stopped.

5. In combination with the heating chamber of a hot air furnace, of an air inlet con duit leading thereto, a f 'ame extending across the conduit and having three openings disposed in side by side relationship therein, a fan positioned adjacent the central opening, a damper positioned adjacent each of the side openings, a shaft extending transversely of said openings, a damper rigidly mounted upon said shaft adjacent each of the damper openings, means acting upon the dampers for holding them normally in open position when the fan is idle, a pair of vanes mounted upon vertical pivots within said frame and disposed adjacent the fan opening, said vanes being adapted to extend substantially parallel to the frame when the fan is idle, and said vanes being adapted to be moved to an oblique position with reference to the frame when the fan is started, and means for connecting the vanes to the shaft, whereby the dampers are moved to closed position automatically when the vanes are moved to the oblique position, and said vanes operating when in the oblique position to defleet some of the air toward each side of the conduit, while the fan is in operation.

In testimony whereof, I hereunto affix my signature.

JAMES C. MILES. 

